Cross-linked polyethylene foam has a good waterproof performance and low water absorption rate (0.3%) thanks to its closed cell structure. It is impervious under the condition of 64kpa,24h.
XPE/IXPE/IXPP foam can be formed into varieties of shapes and post-processed including embossing, cold/hot pressing, blowing.
Heated to 80℃, XPE/IXPE foam has a good performance of bonding capability and form-ability and characteristics of high forming efficiency, good dimensional stability, etc. What’s more, IXPP foam has higher heat resistance to 120℃.
XPE/IXPE foam 5mm in thickness has sound transmission loss of 12dB in the air, 19 dB in the floor. The sound insulation effect is better when the foam is thicker.
Shrinkage rate of XPE foam is within 10%，that of IXPE foam can reach to 7% under the position of 120℃ 24h.
Cross-linked polyethylene foam can effectively block heat transmission with great insulation properties and closed cell structure. Thermal conductivity of polyethylene foam can reach to 0.039W/m.K.
The uniform cell structure of the soft foam with a cross-linked structure has a good performance of shock absorption.